| Budget Amount *help |
¥45,500,000 (Direct Cost: ¥35,000,000、Indirect Cost: ¥10,500,000)
Fiscal Year 2019: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2018: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2017: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2016: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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| Outline of Final Research Achievements |
Various polycyclic aromatic hydrocarbons (PAHs) have been synthesized for utilization as functionalized organic materials and a large number of efforts have been paid for development of their efficient synthetic methods. Our group has been working on the efficient synthesis of polycyclic aromatic hydrocarbons (PAHs) based on our ruthenium-catalyzed C-H and C-O arylations of aromatic ketones. In this study we have applied this strategy to efficient synthesis of tetrabenzo[a,d,j,m]coronene (TBC) derivatives having a readily transformable formyl group.
The chemoselective C-O arylation of 1-methoxyanthraquinone with an arylboronate having an acetal group at a para position proceeded using RuH2(CO)(PPh3)3 as a catalyst to give a 1-arylanthraquinone. Subsequent C-H triarylation with another arylboronate provided tetraarylanthraquinone with one acetal group. Conversion of carbonyl oxygens to methylidenes, followed by Scholl reaction, afforded the TBC derivative bearing a formyl group.
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